They can also use Exclusive weld pins with integral-cupped head washers. Unfaced boards can then be finished with strengthened insulating cement, canvas, or weatherproof mastic. Confronted boards might be set up in precisely the same way, plus the joints involving boards sealed with tension-delicate tape or glass cloth and mastic. https://freeecogrants.co.uk/how-to-insulate-your-home-by-applying-for-the-grants-in-uk/